package com.heima.kafka.listener;

import com.alibaba.fastjson.JSON;
import com.heima.kafka.pojos.User;
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;

@Component
public class HelloListener {

    @KafkaListener(topics = "itcast-topic")
    public void onMessage(String message)
    {
        if(!StringUtils.isEmpty(message)){
            // System.out.println(message);

            System.out.println(JSON.parseObject(message, User.class));
        }
    }
}
